1. Lindon JC, Fertige AG (1980) Prog NMR Spectrosc 14: 27.
2. Haselgrove JC, Subramanian H, Christen R, Leigh JS (1987) Rev Magn Reson Med 2: 167.
3. Barna JCJ, Laue ED, Mayger M, Skilling J, Worrall SJP (1987) J Magn Reson 73: 69.
4. Manassen Y, Navon G (1988) J Magn Reson 79: 291.
5. Stephenson DS (1988) Prog NMR Spectrosc 20: 515.